Historical
ISO 334:1992
Solid mineral fuels - Determination of total sulfur - Eschka method
The reference method specified is based on igniting a test portion (of hard coal, brown coal, lignite, or coke) in intimate contact with Eschka mixture in an oxidizing atmosphere, removal of combustible matter and conversion of the sulfur to sulfate, extraction of sulfate with hydrochloric acid solution and gravimetric determination by precipitation with barium chloride.
CONTENT PROVIDER
International Organization for Standardization [iso]
International Organization for Standardization [iso]
